main.cpp

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/* SPDX-License-Identifier: MIT */
//  Includes
#include "ntv2capture.h"
#include "ajabase/system/process.h" //  for GetPID
#include "ajabase/common/common.h"  //  for strip
#include <signal.h>

using namespace std;


//  Globals
static bool gGlobalQuit (false);    //  Set this "true" to exit gracefully


static void SignalHandler (int inSignal)
{
    (void) inSignal;
    gGlobalQuit = true;
}


int main (int argc, const char ** argv)
{
    int     showVersion     (0);            //  Show version?
    char *  pDeviceSpec     (AJA_NULL);     //  Device specifier string, if any
    char *  pPixelFormat    (AJA_NULL);     //  Pixel format argument
    char *  pFramesSpec     (AJA_NULL);     //  AutoCirculate frames spec
    char *  pAncFilePath    (AJA_NULL);     //  Anc data filepath to record
    char *  pInputSrcSpec   (AJA_NULL);     //  SDI source spec
    int     channelNumber   (1);            //  Channel/FrameStore to use
    int     doMultiFormat   (0);            //  MultiFormat mode?
    int     noAudio         (0);            //  Disable audio capture?
    int     captureAnc      (0);            //  Capture anc?
    AJADebug::Open();

    //  Command line option descriptions:
    const CNTV2DemoCommon::PoptOpts optionsTable [] =
    {
        {"version",       0,    POPT_ARG_NONE,      &showVersion,   0,  "show version & exit",      AJA_NULL                    },
        {"device",      'd',    POPT_ARG_STRING,    &pDeviceSpec,   0,  "device to use",            "index#, serial#, or model" },
        {"channel",     'c',    POPT_ARG_INT,       &channelNumber, 0,  "channel to use",           "1-8"                       },
        {"multiFormat", 'm',    POPT_ARG_NONE,      &doMultiFormat, 0,  "use multi-format/channel", AJA_NULL                    },
        {"pixelFormat", 'p',    POPT_ARG_STRING,    &pPixelFormat,  0,  "pixel format to use",      "'?' or 'list' to list"     },
        {"frames",        0,    POPT_ARG_STRING,    &pFramesSpec,   0,  "frames to AutoCirculate",  "num[@min] or min-max"      },
        {"input",       'i',    POPT_ARG_STRING,    &pInputSrcSpec, 0,  "which SDI input",          "1-8, ?=list"               },
        {"anc",           0,    POPT_ARG_STRING,    &pAncFilePath,  0,  "record anc to file",       "path/to/binary/data/file"  },
        {AJA_NULL,      'a',    POPT_ARG_NONE,      &captureAnc,    0,  "capture anc?",             AJA_NULL                    },
        {"noaudio",       0,    POPT_ARG_NONE,      &noAudio,       0,  "disable audio capture",    AJA_NULL                    },
        POPT_AUTOHELP
        POPT_TABLEEND
    };
    CNTV2DemoCommon::Popt popt(argc, argv, optionsTable);
    if (!popt)
        {cerr << "## ERROR: " << popt.errorStr() << endl;  return 2;}
    if (!popt.otherArgs().empty())
        {cerr << "## WARNING: ignored argument(s): '" << aja::join(popt.otherArgs(), "', '") << "'" << endl;  return 2;}
    if (showVersion)
        {cout << argv[0] << ", NTV2 SDK " << ::NTV2Version() << endl;  return 0;}

    //  Device
    const string deviceSpec (pDeviceSpec ? pDeviceSpec : "0");
    CaptureConfig config(deviceSpec);

    //  Channel
    if ((channelNumber < 1)  ||  (channelNumber > 8))
        {cerr << "## ERROR:  Invalid channel number " << channelNumber << " -- expected 1 thru 8" << endl;  return 1;}
    config.fInputChannel = NTV2Channel(channelNumber - 1);

    //  Input source
    const string legalSources (CNTV2DemoCommon::GetInputSourceStrings(NTV2_IOKINDS_SDI, deviceSpec));
    const string inputSourceStr (pInputSrcSpec ? CNTV2DemoCommon::ToLower(string(pInputSrcSpec)) : "");
    if (inputSourceStr == "?" || inputSourceStr == "list")
        {cout << legalSources << endl;  return 0;}
    if (!inputSourceStr.empty())
    {
        config.fInputSource = CNTV2DemoCommon::GetInputSourceFromString(inputSourceStr);
        if (!NTV2_IS_VALID_INPUT_SOURCE(config.fInputSource))
            {cerr << "## ERROR:  Input source '" << inputSourceStr << "' not one of:" << endl << legalSources << endl;  return 1;}
    }   //  if input source specified

    //  Pixel Format
    const string pixelFormatStr (pPixelFormat  ?  pPixelFormat  :  "");
    config.fPixelFormat = pixelFormatStr.empty() ? NTV2_FBF_8BIT_YCBCR : CNTV2DemoCommon::GetPixelFormatFromString(pixelFormatStr);
    if (pixelFormatStr == "?"  ||  pixelFormatStr == "list")
        {cout << CNTV2DemoCommon::GetPixelFormatStrings(PIXEL_FORMATS_ALL, pDeviceSpec ? deviceSpec : "") << endl;  return 0;}
    else if (!pixelFormatStr.empty()  &&  !NTV2_IS_VALID_FRAME_BUFFER_FORMAT(config.fPixelFormat))
    {
        cerr    << "## ERROR:  Invalid '--pixelFormat' value '" << pixelFormatStr << "' -- expected values:" << endl
                << CNTV2DemoCommon::GetPixelFormatStrings(PIXEL_FORMATS_ALL, deviceSpec) << endl;
        return 2;
    }

    //  AutoCirculate Frames
    static const string legalFramesSpec ("{frameCount}[@{firstFrameNum}]  or  {firstFrameNum}-{lastFrameNum}");
    const string framesSpec (pFramesSpec ? pFramesSpec : "");
    if (!framesSpec.empty())
    {
        const string parseResult(config.fFrames.setFromString(framesSpec));
        if (!parseResult.empty())
            {cerr << "## ERROR:  Bad 'frames' spec '" << framesSpec << "'\n## " << parseResult << endl;  return 1;}
    }
    if (!config.fFrames.valid())
        {cerr << "## ERROR:  Bad 'frames' spec '" << framesSpec << "'\n## Expected " << legalFramesSpec << endl;  return 1;}

    //  Anc Capture
    string ancFilePath (pAncFilePath ? pAncFilePath : "");
    ancFilePath = aja::strip(ancFilePath);
    if (ancFilePath.empty() && pAncFilePath)
    {   //  User specified an empty filePath -- invent a file name...
        ostringstream fileName;  fileName << "ntv2capture-" << deviceSpec << "-"
                << ::NTV2ChannelToString(config.fInputChannel,true) << "-" << AJAProcess::GetPid() << ".anc";
        ancFilePath = fileName.str();
    }
    if (pAncFilePath)
        captureAnc = 1; //  Specifying target anc file automatically enables anc capture

    config.fWithAudio           = noAudio ? false : true;               //  Capture audio?
    config.fAncDataFilePath     = ancFilePath;                          //  Anc capture file path
    config.fWithAnc             = captureAnc ? true : false;            //  Capture anc?
    config.fDoMultiFormat       = doMultiFormat ? true : false;         //  Multiformat mode?

    int result (0);
    do
    {   //  Instantiate and initialize the NTV2Capture object...
        NTV2Capture capturer(config);
        if (AJA_FAILURE(capturer.Init()))
            {result = 1;  break;}

        ::signal (SIGINT, SignalHandler);
        #if defined(AJAMac)
            ::signal (SIGHUP, SignalHandler);
            ::signal (SIGQUIT, SignalHandler);
        #endif

        //  Run it...
        capturer.Run();

        cout    << "   Frames   Frames   Buffer" << endl
                << " Captured  Dropped    Level" << endl;
        do
        {   //  Poll its status until stopped...
            ULWord  framesProcessed, framesDropped, bufferLevel;
            capturer.GetACStatus (framesProcessed, framesDropped, bufferLevel);
            cout << setw(9) << framesProcessed << setw(9) << framesDropped << setw(9) << bufferLevel << "\r" << flush;
            AJATime::Sleep(2000);
        } while (!gGlobalQuit); //  loop til done
        cout << endl;
    } while (false);    //  NTV2Capture scope
    return result;

}   //  main